Templet



. tion.

Patented Nov. 11 1941 2,262,475 1 p TEMB I ET-*i"nlexanderlfrstewart.DetroiLMichff 6, ApplicationSeptember12,1938,SrialNo429550t' i 1 1 clain1.2 (Ci.90- 6 2 Myinvention relatesmanew' rld usefulimprovemen t iriatemplet adapted for use on profil--ing or" duplicating machinesp A satisfactory method 7 of producing suchtemplets is to j form the samefrom iapla'stic material and allow thematerial to harden. It has been-discovered, how- "everl that freduentlyasheet of metal is placed .over the templet and hammered into position.

In the formingor hammering operation the sheet of metal is bent aroundand hammered into close engagement with the edges. Experience has shownthat frequently these edges become chipped because of the hammeringoperation.

. It is an object of the present invention to provide a reinforcementfor themarginal edges of the templet so that injury of thegsameresulting from the hammering operation will not be effected, and it isan object of the present invention to provide a templet of this classhaving a reinforced metallic edge.

It is another object of the present invention to provideametallicreinforcement along the edge of the templetat the time the sameis formed. i

Another object of the present invention is the provision of a templethaving metallic edge reinforcing means anchored thereon and exposedtoprovide a metallic marginal edge on the outer surface.

Another object of the invention is the provision of a templet of thisclass having a non-frangible marginal edgeon the outer surface.

Another object ofthe invention is the provision of a templet of thisclasswhich will be durable in structure, economical of manufactureandhighly efficient in use.

Other objects will appear hereinafter.

The invention consists in the combination and.

arrangement of parts hereinafter described and claimed. l

Fig. j6 is a-perspectiveview illustrating the-arrangement of thereinforcing means.

Fig. -7 isa fragmentary sectional View showin a slightly modified formof the invention.

"Fig. 8 is a fragmentary side elevational View of themodified-formshownin Fig. '7.

As shown in the drawing,the templet comprises a body 9 formed fromhardened plastic material. This body 9 is formed in a suitablemoldconstructed to the desired shape. Suitable supporting legs IIJ serveto connect the body 9 with the frame ll which carries the attachmentmeans l2.

A mold l3 in which the body 9 isformed is preferably constructed fromplastic material which is allowed to harden, this plastic material beingplaced about a suitable pattern or form. After the mold is hardened the.body 9 is formed therein by depositing. over the inner surface thereof,when a female form is used, and over the outer surface thereof whenamale form of mold is used, the proper amount of plastic material fromwhich the body 9 is to be formed.

Prior to the depositing of thismaterial on the inner surface of the moldor form l3 there is secured on the edge space 25,0f the mold a suitableplate formed from cardboard or the like to provide anoverhangingabutment ledge. This ledge projects inwardly from the innerface 26 of the mold or form when a female mold is used and projectsoutwardly from the outer face when The invention will betas understoodby a reference to the accompanying drawing which forms a part of thisspecification, and in which, Fig. 1 is a side elevational View of theinven- Fig. 2 is a sectional view taken on line 2 -2 of Fig. 1.

Fig. 3 is a fragmentaryside elevational view of I the molds prior tothedeposit of the plastic materialtherein. 1

Fig. 4 is a sectional view taken on lined- 4. of

Fig. 3. l

Fig. 5 is a fragmentary sectional view showing a stage of the operationand formation.

a male form is used. The overhanging ledge portion M of theplate [4extends beyond the face of the mold the distance equal to the thick nessof the body 9 to be formed. This plate [4 is generally formed from aplurality of small pieces so as to ,render it possible to follow thecurves and indentations of the mold.

In carrying outthe invention the face of the mold and of the ledgeportion I4 is covered with a suitable adhesive such as grease or thelike. The metallic edge-forming members are located in position incontactwith the face of the mold and in contact with the inner face ofthe ledgeforming portion 14- ,the adhesive or grease serving as a meansfor retaining the reinforcing or metallic edge-forming members inposition.

In Fig. 1 I have shown the metallic'edge formed from a plurality ofbolts. These bolts l6 are arranged to extend alternately at right anglesto each other. Thenuts on the bolts are contacted against the inner face26 and the inner face of the ledge-forming portion I4. The nuts of theadjacent bolts are in contact with each other, thus forming a continuousmetallic edge.

When the plastic material is placed in position the heads of the boltsas Well as the stems thereof are embedded in the concrete as shownclearly in Fig. 5. It is believed obvious that other types ofreinforcing members may be used instead of a bolt with a nut threadedthereon. All that is required is that the metallic edge-forming membersbe sufiiciently small to permit their location continuously aroundcurves and indentations.

In Fig. '7 and Fig. 8 I have shown a different type of metallicedge-forming members. In this form of structure the metallic edgeportion is formed from a plurality of metallic plates having theangularly extended portions I9 and 20, these portions are flat and platelike and engage against the inner surface 26 of the mold and the innersurface of the ledge-forming portion [4' as previously described.Projecting outwardly from the juncture of these plates l 9 and 20 is thestem 2| having an anchor head 22 formed thereon.

When the metallic edge-forming members are placed in position, theplastic material forming the body 9 is then deposited tothe properthickness. The plastic material is then permitted to harden thusembedding and securing the metallic edge-forming members in position.

In this way there is formed a templet body formed from plastic materialhaving a reinforced and metal faced edge thus obviating thedisadvantages referred to and providing the structure around whichmetallic sheets may be hammered and a structure which will not crack andchip off in its handling.

While I have illustrated and described the preferred form ofconstruction, I do not wish to limit myself to the precise details ofstructure shown, but desire to avail myself of such variations andmodifications as may come within the scope of the appended claim.

What I claim as new is:

A profiling machine templet of the class described, comprising: acontact body formed from hardened plastic material; a plurality ofseparate metallic stems each provided, at one of its ends, with a flatfaced metallic head, said stems being imbedded in said body with one ofthe faces of said heads exposed and forming a continuation of one of theouter faces of said body, opposed faces of adjacent heads being inengagement with each other; means on the opposite ends of said stemsforanchoring the same in said body; alternate stems in said body extendingperpendicular to the extension of adjacent stems.

ALEXANDER P. STEWART.

